Archaeologists have discovered the ruins of a buried Christian empire in the highlands of Yemen, leading to theories that there may have once been a church in Mecca. A stone carving of a Christian figure was found in Zafar, some 581 miles south of Mecca, and is thought to have been made in the era of the Prophet Muhammad. Paul Yule, an archaeologist from Heidelberg in Germany, has dated the 5feet 7inch tall relief which shows a man with chains of jewellery, curls and spherical eyes to around 530AD. ... The figure is barefoot, which was typical of Coptic saints....